多功能电子秤 关键词：电子秤；称重传感器；A/D转换器；AT89C51单片机 [gap=737]Keywords：Electronics steelyard；weighing transducer；A/D transducer；AT89C51 single-chip microcomputer
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The paper introduces the measuring circuit of volts d. c. equipped with AT89C51 single-chip microcomputer and MAX197 data-acquisition system.
介绍由单片机AT89C51、数据采集系统MAX197组成的直流电压测量电路。
Interface circuit and the design of control program in asynchronous transfer mode between AT89C51 single chip microcomputer system and intelligent MODEM are introduced.
介绍AT 89 C 51单片机系统与智能调制解调器MODEM之间的接口电路和异步传输方式下的控制程序设计。
This paper introduces the functions and work principles of serial clock chip DS1302, the design of interface circuit with AT89C51 single -chip microcomputer in the spray irrigation controller.
本文介绍了串行时钟芯片DS1302的功能和工作原理，并给出ds1302在灌溉控制器中与AT 89 C 51单片机的接口电路设计。
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